System prices vary widely depending on module selection, type of system (grid-tied, off-grid, or battery back-up), and mounting method (roof, ground, or pole mount). For example, while Sanyo modules are the most efficient, they are also the most expensive. Suntech modules are less efficient, and also cost less. If you have a large area to install the system, you can use less efficient modules. However, if your optimum solar roof space is limited, you may need higher efficiency Sanyo modules which allow you to fit more watts of solar into a smaller space. 

The most popular size residential system in Oregon is 2kW. This size system yields about 2400kWh of electricity production per year. The main reason this system is so popular is the price. At the 2kW system size, the state and federal tax credits are maximized.

Note: When comparing estimates for your solar electric system, divide the system cost by the system size in watts to determine "price per watt". Price per watt figures will allow you to compare apples to apples when it comes to selecting the best system value."

Why go solar?

How much does a solar electric system cost?

Click on the corresponding links below to your power company to see an example cost breakdown.

If your power provider is not listed, please contact us for more information on your specific situation. Please visit our resources page for more informational links.